(function(global, factory) {
  typeof exports === "object" && typeof module !== "undefined" ? module.exports = factory(global) : typeof define === "function" && define.amd ? define(factory) : factory(global)
}((typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : typeof global !== "undefined" ? global : this), function(global) {
  global = global || {};
  var _Base64 = global.Base64;
  var version = "2.6.3";
  var b64chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
  var b64tab = function(bin) {
    var t = {};
    for (var i = 0, l = bin.length; i < l; i++) {
      t[bin.charAt(i)] = i
    }
    return t
  }(b64chars);
  var fromCharCode = String.fromCharCode;
  var cb_utob = function(c) {
    if (c.length < 2) {
      var cc = c.charCodeAt(0);
      return cc < 128 ? c : cc < 2048 ? (fromCharCode(192 | (cc >>> 6)) + fromCharCode(128 | (cc & 63))) : (fromCharCode(224 | ((cc >>> 12) & 15)) + fromCharCode(128 | ((cc >>> 6) & 63)) + fromCharCode(128 | (cc & 63)))
    } else {
      var cc = 65536 + (c.charCodeAt(0) - 55296) * 1024 + (c.charCodeAt(1) - 56320);
      return (fromCharCode(240 | ((cc >>> 18) & 7)) + fromCharCode(128 | ((cc >>> 12) & 63)) + fromCharCode(128 | ((cc >>> 6) & 63)) + fromCharCode(128 | (cc & 63)))
    }
  };
  var re_utob = /[\uD800-\uDBFF][\uDC00-\uDFFFF]|[^\x00-\x7F]/g;
  var utob = function(u) {
    return u.replace(re_utob, cb_utob)
  };
  var cb_encode = function(ccc) {
    var padlen = [0, 2, 1][ccc.length % 3]
        , ord = ccc.charCodeAt(0) << 16 | ((ccc.length > 1 ? ccc.charCodeAt(1) : 0) << 8) | ((ccc.length > 2 ? ccc.charCodeAt(2) : 0))
        , chars = [b64chars.charAt(ord >>> 18), b64chars.charAt((ord >>> 12) & 63), padlen >= 2 ? "=" : b64chars.charAt((ord >>> 6) & 63), padlen >= 1 ? "=" : b64chars.charAt(ord & 63)];
    return chars.join("")
  };
  var btoa = global.btoa && typeof global.btoa == "function" ? function(b) {
            return global.btoa(b)
          }
          : function(b) {
            if (b.match(/[^\x00-\xFF]/)) {
              throw new RangeError("The string contains invalid characters.")
            }
            return b.replace(/[\s\S]{1,3}/g, cb_encode)
          }
  ;
  var _encode = function(u) {
    return btoa(utob(String(u)))
  };
  var mkUriSafe = function(b64) {
    return b64.replace(/[+\/]/g, function(m0) {
      return m0 == "+" ? "-" : "_"
    }).replace(/=/g, "")
  };
  var encode = function(u, urisafe) {
    return urisafe ? mkUriSafe(_encode(u)) : _encode(u)
  };
  var encodeURI = function(u) {
    return encode(u, true)
  };
  var fromUint8Array;
  if (global.Uint8Array) {
    fromUint8Array = function(a, urisafe) {
      var b64 = "";
      for (var i = 0, l = a.length; i < l; i += 3) {
        var a0 = a[i]
            , a1 = a[i + 1]
            , a2 = a[i + 2];
        var ord = a0 << 16 | a1 << 8 | a2;
        b64 += b64chars.charAt(ord >>> 18) + b64chars.charAt((ord >>> 12) & 63) + (typeof a1 != "undefined" ? b64chars.charAt((ord >>> 6) & 63) : "=") + (typeof a2 != "undefined" ? b64chars.charAt(ord & 63) : "=")
      }
      return urisafe ? mkUriSafe(b64) : b64
    }
  }
  var re_btou = /[\xC0-\xDF][\x80-\xBF]|[\xE0-\xEF][\x80-\xBF]{2}|[\xF0-\xF7][\x80-\xBF]{3}/g;
  var cb_btou = function(cccc) {
    switch (cccc.length) {
      case 4:
        var cp = ((7 & cccc.charCodeAt(0)) << 18) | ((63 & cccc.charCodeAt(1)) << 12) | ((63 & cccc.charCodeAt(2)) << 6) | (63 & cccc.charCodeAt(3))
            , offset = cp - 65536;
        return (fromCharCode((offset >>> 10) + 55296) + fromCharCode((offset & 1023) + 56320));
      case 3:
        return fromCharCode(((15 & cccc.charCodeAt(0)) << 12) | ((63 & cccc.charCodeAt(1)) << 6) | (63 & cccc.charCodeAt(2)));
      default:
        return fromCharCode(((31 & cccc.charCodeAt(0)) << 6) | (63 & cccc.charCodeAt(1)))
    }
  };
  var btou = function(b) {
    return b.replace(re_btou, cb_btou)
  };
  var cb_decode = function(cccc) {
    var len = cccc.length
        , padlen = len % 4
        , n = (len > 0 ? b64tab[cccc.charAt(0)] << 18 : 0) | (len > 1 ? b64tab[cccc.charAt(1)] << 12 : 0) | (len > 2 ? b64tab[cccc.charAt(2)] << 6 : 0) | (len > 3 ? b64tab[cccc.charAt(3)] : 0)
        , chars = [fromCharCode(n >>> 16), fromCharCode((n >>> 8) & 255), fromCharCode(n & 255)];
    chars.length -= [0, 0, 2, 1][padlen];
    return chars.join("")
  };
  var _atob = global.atob && typeof global.atob == "function" ? function(a) {
            return global.atob(a)
          }
          : function(a) {
            return a.replace(/\S{1,4}/g, cb_decode)
          }
  ;
  var atob = function(a) {
    return _atob(String(a).replace(/[^A-Za-z0-9\+\/]/g, ""))
  };
  var _decode = function(a) {
    return btou(_atob(a))
  };
  var _fromURI = function(a) {
    return String(a).replace(/[-_]/g, function(m0) {
      return m0 == "-" ? "+" : "/"
    }).replace(/[^A-Za-z0-9\+\/]/g, "")
  };
  var decode = function(a) {
    return _decode(_fromURI(a))
  };
  var toUint8Array;
  if (global.Uint8Array) {
    toUint8Array = function(a) {
      return Uint8Array.from(atob(_fromURI(a)), function(c) {
        return c.charCodeAt(0)
      })
    }
  }
  var noConflict = function() {
    var Base64 = global.Base64;
    global.Base64 = _Base64;
    return Base64
  };
  global.Base64 = {
    VERSION: version,
    atob: atob,
    btoa: btoa,
    fromBase64: decode,
    toBase64: encode,
    utob: utob,
    encode: encode,
    encodeURI: encodeURI,
    btou: btou,
    decode: decode,
    noConflict: noConflict,
    fromUint8Array: fromUint8Array,
    toUint8Array: toUint8Array
  };
  if (typeof Object.defineProperty === "function") {
    var noEnum = function(v) {
      return {
        value: v,
        enumerable: false,
        writable: true,
        configurable: true
      }
    };
    global.Base64.extendString = function() {
      Object.defineProperty(String.prototype, "fromBase64", noEnum(function() {
        return decode(this)
      }));
      Object.defineProperty(String.prototype, "toBase64", noEnum(function(urisafe) {
        return encode(this, urisafe)
      }));
      Object.defineProperty(String.prototype, "toBase64URI", noEnum(function() {
        return encode(this, true)
      }))
    }
  }
  if (global["Meteor"]) {
    Base64 = global.Base64
  }
  if (typeof module !== "undefined" && module.exports) {
    module.exports.Base64 = global.Base64
  } else {
    if (typeof define === "function" && define.amd) {
      define([], function() {
        return global.Base64
      })
    }
  }
  return {
    Base64: global.Base64
  }
}));